Home / 21,932.88-30,267.33-11,861.29

Finding the Fourth Proportional to 21,932.88, 30,267.33 and 11,861.29

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Solution

The fourth proportional to 21,932.88, 30,267.33 and 11,861.29 is: 16,368.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,932.88 : 30,267.33 = 11,861.29 : x
  2. Step 2: Convert to fraction form
    21,932.88/30,267.33 = 11,861.29/x
  3. Step 3: Cross multiply
    21,932.88x = 30,267.33 × 11,861.29
  4. Step 4: Simplify right side
    21,932.88x = 359,009,578.66
  5. Step 5: Solve for x
    x = 359,009,578.66/21,932.88
  6. Step 6: Final answer
    x = 16,368.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.